Business Area

We introduce CM’s business area

SILICONE

  • SILICONE
  • SILICONE
  • SILICONE

Silicone property

SILICONE

Polymer composed of mainly Si, O, have strong bonding energy among Si-O

Easy to apply, composite of organic and non-organic matter, High Thermal-resistance, cold-resistance, waterproof

Bonding energy
El. Bonding energy Kcal/mol (KJ/mol)
C Si
C 84.9(349) 58~80(240~340)
Si 58~80(240~340) 45(189)
H 98.8(414) 72.6(304)
O 83.2(349) 106.0(423)

Main shape

Polymer Composite Materials : polymer matrix + filler Metallic : metal matrix ( + filler, binder)

SILICONE

1Compound heat resistance : Thermal conductivity and thickness of Filler

2Heat resistance among particles : Shape and size of particle

3Surface Heat resistance : Surface condition(adherency)

Components

  • Matrix

    RoleMaintain shape, stick, adhesion TypesSilicone, Epoxy, Urethane, Acryl, etc. Required properties
    low-viscosity, heat-resistance, chemical-resistance, low-volatile

  • Filler

    Rolethermal transfer, electric insulation Types ∙ Ceramic, Metal, carbonaceous materials etc.
    ∙ Al2O3, SiO2, MgO, AlN, BN, SIC, etc.
    ∙ Ag, Cu, Au, Ni, Sn, In, Bi, etc.
    ∙ Graphite, CNT, Graphene, etc.
    Required properties
    high heat-resistance, high purity, Absorbent resistance

SILICONE

DATA SHEET

[ Si+Polyimide ]

Si+Polyimide
TYPICAL PROPERTIES
PROPERTY METRIC VALUE TEST METHOD
Color Yellow Visual
Reinforcement Carrier Polyimide -
Thickness (mm) 0.152 ASTM D374
Hardness (Shore A) 90 ASTM D2240
Breaking Strength (lbs/inch) / (kN/m) 5 ASTM D1458
Elongation (%) 40 ASTM D412
Tensile Strength (psi) / (Mpa) 34 ASTM D412
Continuous Use Temp (℉) / (℃) -20 to 150 -
ELECTRICAL
Dielectric Breakdown Voltage (Vac) 6000 ASTM D149
Dielectirc Constant (1000 Hz) 3.7 ASTM D150
Volume Resistivity (Ohm-meter) 1012 ASTM D257
Flame Rating V-O U.L.94
THERMAL
Thermal Conductivity (W/m-k) 1.3 ASTM D5470

[ Si+Fiberglas ]

Si+Fiberglas
TYPICAL PROPERTIES
PROPERTY METRIC VALUE TEST METHOD
Color Gray Visual
Reinforcement Carrier Fiberglass -
Thickness (mm) 0.18, 0.23 ASTM D374
Hardness (Shore A) 85 ASTM D2240
Breaking Strength (lbs/inch) / (kN/m) 5 ASTM D1458
Elongation (%) 54 ASTM D412
Tensile Strength (psi) / (Mpa) 20 ASTM D412
Continuous Use Temp (℉) / (℃) -60 to 180 -
ELECTRICAL
Dielectric Breakdown Voltage (Vac) 3500,4500 ASTM D149
Dielectirc Constant (1000 Hz) 5.5 ASTM D150
Volume Resistivity (Ohm-meter) 1011 ASTM D257
Flame Rating V-O U.L.94
THERMAL
Thermal Conductivity (W/m-k) 0.9 ASTM D5470

[ SiliconeⅠ ]

SiliconeⅠ
PROPERTY Test Method CM TECH Grade
CM-1W CM-2W CM-3.3W CM-5W
Thickness(mm) ASTM D 374 0.5~1 0.5~1 0.5~1 0.5~1
Color Visual White White White White
Hardness(Shore 00) ASTM D 2240 55 60 65~70 70~75
Specific Gravity(g/㎤) ASTM D 792 2.1 2.65 2.9 3.1
Continue Use(℃) - -60 ~ +200 -60 ~ +200 -60 ~ +200 -60 ~ +200
Thermal Conductivity(W/m.K) ASTM D 5470 1 2 3.3 5
Dielectric Constant ASTM D 150 5.5 5.5 5.5 5.5
Dielectric Breakdown(kV AC) ASTM D 149 >10 >10 >10 >10
Volume Resistivity(ohm Meter) ASTM D 257 >1012 >1012 >1012 >1012

[ SiliconeⅡ ]

SiliconeⅡ
PROPERTY Test Method CM TECH Grade
CM-0.25W CM-2.5WT CM-3W(LB)
Thickness(mm) ASTM D 374 1.5 0.5 1.0
Color Visual Transparency Dark Gray Light Blue
Hardness ASTM D 2240 40 (Shore A) 50 (Shore 00) 55 (Shore 00)
Specific Gravity(g/㎤) ASTM D 792 1.1 2.8 2.8
Continue Use(℃) - -60 ~ +200 -60 ~ +200 -60 ~ +200
Thermal Conductivity(W/m.K) ASTM D 5470 0.25 2.5 3.0

[ SiliconeⅢ ]

SiliconeⅢ
PROPERTY Test Method CM TECH Grade
CM-5WS
Thickness(mm) - 1.0
Color Visual Gray
Hardness(Asker C) - 45
Specific Gravity(g/㎤) JIS K 6249 3.1
Continue Use(℃) - -60 ~ +200
Thermal Conductivity(W/m.K) ASTM E 1530 5.0
Dielectric Strength(kV) JIS C 2110 18
Dielectric Breakdown(kV AC) JIS K 6249 20

[ SiliconeⅣ ]

SiliconeⅣ
PROPERTY Test Method CM TECH Grade
CM-5WDS
Thickness(mm) - 0.5 ~ 1.0
Color Visual Gray
Hardness(Shore 00) ASTM D 2240 60
Specific Gravity(g/㎤) ASTM D 792 2.7 ~ 3.3
Continue Use(℃) - -60 ~ +200
Thermal Conductivity(W/m.K) ASTM D 5470 5.0
Dielectric Constant ASTM D 150 5.5
Dielectric Breakdown(kV AC) ATM D 149 >8
Volum Resistivity (Ω-meter) ASTM D 257 >1011

PARTS NUMBER

Close

Privacy Policy

At CM Tech (hereinafter referred to as 'Company'), we value your personal information and comply with the Act on Promotion of Information Network Utilization and Information Protection.

Through the Privacy Policy, the company will inform you about the purpose and method of personal information that you provide and what measures are being taken to protect personal information.

When the company revises its privacy policy, it will notify it through a notice on the website (or individual notice).

ο This policy is: effective January 02nd, 2016.


■ Personal information items collected

The company collects the following personal information for consultation.
- Collection item : Name, company name, contact, email, consultation details
- How to collect personal information : homepage (board of inquiry)


■ Purpose of collecting and using personal information

The company utilizes the collected personal information for the following purposes :
Inquiries/response to fulfillment of contract and service delivery regarding service delivery


■ Personal information retention and utilization period

In principle, after the purpose of collecting and using personal information is achieved, such information shall be destroyed without delay. However, if it is necessary to preserve the information in accordance with the provisions of the relevant statutes, the company shall keep the information of the members for a certain period as specified in the relevant statutes as follows.

Basis for preservation of items and payment records

- Retention period for records regarding contract or withdrawal of subscription : 3 years
- Records on contract or withdrawal of subscription : 5 years (Act on Consumer Protection in Electronic Commerce, etc.)
- Records on the supply of payments and goods : 5 years (Act on Consumer Protection in Electronic Commerce, etc.)
- Records on consumer complaints or dispute handling : 3 years (Act on Consumer Protection in Electronic Commerce, etc.)


■ Personal information destruction procedures and methods

In principle, the company destroys such information without delay after the purpose of collecting and using personal information is achieved. The destruction procedure and method are as follows.

- Destruction procedure
The information entered by the member for membership registration etc. is transferred to a separate DB after the purpose is achieved (in case of paper, separate document box) and is stored for a certain period of time (see retention and service period) according to the reasons for information protection under the internal policy and other related statutes.
Personal information transferred to a separate DB shall not be used for other purposes other than those held by law.

- method of destruction
Personal information stored in electronic file types is deleted using a technical method that cannot play back the recording.


■ Providing personal information

In principle, the company does not provide the users' personal information to the outside. Exceptions are provided in the following cases.
In case the users agree in advance or there is a request from the investigative agency in accordance with the provisions of the Act or with the procedures and methods set forth in the Act for the purpose of investigation;


■ Consignment of personal information collected

The company is commissioned and operated by an outside company to implement the service as follows.
- Subject to consignment : (Note) Three-Aania and Annecy
- Contents of consignment work : Website and system management (hosting/maintenance)


■ Users' rights and legal representatives' rights and their methods of exercise

The user can inquire or modify his or her personal information registered at any time, and may request to be unregistered.
For personal information retrieval and modification of users' personal information, 'personal information change' (or 'modifying member information') can be subscribed (or withdrawal of consent), the user can go through the confirmation process and read, correct or leave the group. Or, if you contact the person in charge of personal information management in writing, phone or email, we will take care of it without delay.
If you request for correction of personal information errors, we will not use or provide such personal information until we complete the correction.
In addition, if the wrong personal information is already provided to a third party, the correction shall be made without delay by notifying the third party of the correction result.
The company processes personal information that has been revoked or deleted at the request of the users as specified in "The period of the possession and use of personal information collected by the company" and does not allow access to or use for other purposes.


■ Items concerning the installation, operation and rejection of the automatic collection device for personal information

The company operates 'cookies' that store and retrieve your information from time to time. Cookies are very small text files sent to your browser by the server used to run the website and are stored on your computer's hard disk.
The company uses cookies for the following purposes:

- Purpose of use such as cookies
You have the option of providing targeted marketing and personal service by analyzing the frequency of access and time of visits by members and non-members, identifying the user's tastes and interests, tracking their personal interest, and understanding the level of participation in various events and retrieval of visits.
Therefore, you may allow all cookies by setting options in your web browser, check each time a cookie is saved, or refuse to save all cookies.

- How to deny cookie settings
By selecting an option for your web browser, you can allow all cookies, check every time you save them, or refuse to save all cookies.

- How to set it up
Yes (for Internet Explorer): Tools at the top of your web browser > Internet options > Personal Information
However, if you refuse to install cookies, you may find it difficult to provide services.


■ Civil service regarding personal information

The company designates the relevant departments and the person in charge of personal information management in order to protect the customer's personal information and handle complaints related to personal information as shown below.


Customer Service Division

Department name : Management department
Phone number : 031-222-2817.
Email : mjl@cmsemitech.com

Personal Information Management Officer

name : Lim Min-joon
Phone number : 031-222-2817
Email : mjl@cmsemitech.com


You can report any personal information protection complaints that arise from using the company's services to the personal information management manager or the department in charge.
The company will promptly provide sufficient answers to the users' reports.


If you need to report or consult about other personal information breaches, please contact the following agencies.

Personal Dispute Coordinating Committee (www.1336.or.kr/1336)
Information Protection Mark Certification Committee (www.eprivacy.or.kr/02-580-0533-4)
The Supreme Prosecutors' Office's Internet Crime Investigation Center (http://icic.sppo.go.kr/02-3480-3600)
National Police Agency Cyber Terror Response Center (www.ctrc.go.kr/02-392-0330)

Close

E-mail collection prohibited

Please note that the e-mail addresses posted on this website will not be collected without permission using e-mail collection programs or other technical devices, and will be criminally punished by the Information and Communication Network Act if they violate them.